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| General Description | | Antenna front mount for connecting the antennas of EM 100 G2, EM 300 G2, EM 500 G2 receivers or SR 300 IEM G2 transmitters to the front of the rack. To be used in combination with the GA 2 rack mount. | | Delivery Includes | ![]() | 2 x 50-ohm BNC cables | ![]() | Mounting accessories |
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Technical Data
RF frequency range 470 ..... 870 MHz
Transmission loss 0 dB
Nominal impedance 50 Ohm
RF input BNC
Remarks Booster Feed: 12 V, 70 mA
Mains voltage 100 - 240 V
Mains frequency 50 - 60 Hz
Dimensions 19 ʼʼ, 1U
Weight approx. 3 kg |
The IR-300M is a hands-free infrared wireless microphone. It eliminates problems with interference or eavesdropping, allowing simultaneous use in adjacent conference rooms or school classrooms. Since infrared wireless microphone system uses a frequency band that does not interfere with that of the TS-800 and TS-900 series infrared conference system, both systems can be simultaneously installed in the same location.
| Battery | IR-200BT-2 rechargeable battery for the infrared wireless microphone (option)
or AA alkaline dry cell battery (2 pieces). | | Current Consumption | Typ. 250 mA (2.4 V, Power selector switch: N)
Typ. 340 mA (2.4 V, Power selector switch: H) |
Infrared Emitter
| Wavelength | 870 nm (AM: Brightness modulation) | | Modulation Method | Frequency modulation | | Carrier Frequency | Channel A: 3.100 MHz
Channel B: 3.350 MHz | | Transmission Distance | Approx. 20 m (65 ft) (Power selector switch: H, in an unobstructed space)
Approx. 15 m (50 ft) (Power selector switch: N, in an unobstructed space) | | Tone Signal | 32.768 kHz | | Modulation Sensitivity | ±4.8 kHz (1 kHz, when SPL of 84 dB is input) | | Maximum Input Sound Pressure | 120 dB SPL | | Input Sensitivity Adjustment | Adjustment range: -9 dB to 0 dB (factory preset: 0 dB) | | Microphone Unit | Unidirectional electret condenser microphone | | Frequency Response | 100 Hz - 12 kHz | | Preemphasis | 300 μs | | Input | External microphone input (φ3.5 monaural mini jack) | | Battery Operation Time | Approx. 8 h (when the IR-200BT rechargeable battery for the infrared wireless
microphone is used, Power selector switch: N)
Approx. 6 h (when the alkaline battery is used, Power selector switch: N) | | Operating Temperature | 0 ℃ to +40 ℃ (32 ゜F to 104 ゜F) | | Operating Humidity | 30 % to 85 %RH | | Finish | Control section: ABS resin, metallic gray, paint, 50% gloss
Filter section: Polycarbonate, optical cut filter | | Dimensions | 64 (W) × 91.3 (H) ×27.3 (D) mm (2.52" × 3.59" × 1.07“) | | Weight | 130 g (0.29 lb) (with battery and strap) | | Accessory | Screw driver (for setting) …1, Color label (6 colors) …1 |
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Technical Data
RF frequency range 470 ..... 870 MHz
Transmission loss 0 dB (+/- 1 dB)
Nominal impedance 50 Ohm
Antenna connector BNC
Remarks max. 100 mW RF input power per channel
Dimensions 19 ʼʼ, 1 U
Mains voltage 100 - 240 V
Mains frequency 50 - 60 Hz |
Shure PS9E Power Supply for P4HW
- Suitable for the follpwing: T11, LX1, UT1, ULX1, MX1BP, P2R, P4R
- For external power supplies
- Consists of a PS21E power supply + 9V block
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The Sennheiser NT1-UK power adaptor supplies 12v D.C. regulated power for the Sennheiser ASP 2 passive antenna splitter.
The ASP 2 also powers up to 4 x EM100 / 300 / 500 G2 radio mic receivers and 2 x AB 2 active mast head amplifiers 240 volt A.C. input. (UK 3 pin). The ASP 2 with NT1-UK combination helps reduce Antenna and PSU requirements in a multi receiver system.
Sennheiser NT1-UK Features:
- 12 volt D.C. regulated output, centre pin polarised positive
- 1.5 amp current rating
The Sennheiser NT1-UK power adaptor supplies 12v D.C. regulated power for Sennheiser ASP 2 passive antenna splitter.
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